{"id":87978,"date":"2024-10-18T05:34:17","date_gmt":"2024-10-17T21:34:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/87978\/"},"modified":"2024-10-18T05:34:18","modified_gmt":"2024-10-17T21:34:18","slug":"ora-22901-%e7%84%a1%e6%b3%95%e6%af%94%e8%bc%83%e5%b0%8d%e8%b1%a1%e9%a1%9e%e5%9e%8b%e7%9a%84-varray-%e6%88%96-lob-%e5%b1%ac%e6%80%a7-oracle-%e5%a0%b1%e9%8c%af-%e6%95%85%e9%9a%9c%e4%bf%ae%e5%be%a9","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/87978\/","title":{"rendered":"ORA-22901: \u7121\u6cd5\u6bd4\u8f03\u5c0d\u8c61\u985e\u578b\u7684 VARRAY \u6216 LOB \u5c6c\u6027 ORACLE \u5831\u932f \u6545\u969c\u4fee\u5fa9 \u9060\u7a0b\u8655\u7406"},"content":{"rendered":"<h1 id=\"ora-22901-%e7%84%a1%e6%b3%95%e6%af%94%e8%bc%83%e5%b0%8d%e8%b1%a1%e9%a1%9e%e5%9e%8b%e7%9a%84-varray-%e6%88%96-lob-%e5%b1%ac%e6%80%a7-oracle-%e5%a0%b1%e9%8c%af-%e6%95%85%e9%9a%9c%e4%bf%ae%e5%be%a9-yMUZrNnhjV\">ORA-22901: \u7121\u6cd5\u6bd4\u8f03\u5c0d\u8c61\u985e\u578b\u7684 VARRAY \u6216 LOB \u5c6c\u6027 ORACLE \u5831\u932f \u6545\u969c\u4fee\u5fa9 \u9060\u7a0b\u8655\u7406<\/h1>\n<p>\u5728\u4f7f\u7528 Oracle \u6578\u64da\u5eab\u6642\uff0c\u958b\u767c\u8005\u548c\u6578\u64da\u5eab\u7ba1\u7406\u54e1\u53ef\u80fd\u6703\u9047\u5230\u5404\u7a2e\u932f\u8aa4\u4ee3\u78bc\uff0c\u5176\u4e2d\u4e4b\u4e00\u4fbf\u662f <code>ORA-22901<\/code>\u3002\u9019\u500b\u932f\u8aa4\u901a\u5e38\u51fa\u73fe\u5728\u5617\u8a66\u6bd4\u8f03\u5c0d\u8c61\u985e\u578b\u7684 VARRAY \u6216 LOB\uff08Large Object\uff09\u5c6c\u6027\u6642\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u9019\u500b\u932f\u8aa4\u7684\u539f\u56e0\u3001\u5f71\u97ff\u4ee5\u53ca\u5982\u4f55\u9032\u884c\u6545\u969c\u4fee\u5fa9\u3002<\/p>\n<h2 id=\"ora-22901-%e9%8c%af%e8%aa%a4%e7%9a%84%e5%8e%9f%e5%9b%a0-yMUZrNnhjV\">ORA-22901 \u932f\u8aa4\u7684\u539f\u56e0<\/h2>\n<p>\u7576\u4f60\u5728 Oracle \u6578\u64da\u5eab\u4e2d\u4f7f\u7528\u5c0d\u8c61\u985e\u578b\u6642\uff0c\u53ef\u80fd\u6703\u5b9a\u7fa9\u4e00\u4e9b\u5305\u542b VARRAY \u6216 LOB \u7684\u5c6c\u6027\u3002\u9019\u4e9b\u5c6c\u6027\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\u7121\u6cd5\u76f4\u63a5\u9032\u884c\u6bd4\u8f03\uff0c\u9019\u5c31\u5c0e\u81f4\u4e86 <code>ORA-22901<\/code> \u932f\u8aa4\u7684\u51fa\u73fe\u3002\u5177\u9ad4\u4f86\u8aaa\uff0c\u9019\u500b\u932f\u8aa4\u901a\u5e38\u767c\u751f\u5728\u4ee5\u4e0b\u60c5\u6cc1\uff1a<\/p>\n<ul>\n<li>\u5617\u8a66\u5728 SQL \u67e5\u8a62\u4e2d\u4f7f\u7528 <code>WHERE<\/code> \u5b50\u53e5\u6bd4\u8f03 VARRAY \u6216 LOB \u5c6c\u6027\u3002<\/li>\n<li>\u5728 PL\/SQL \u7a0b\u5e8f\u4e2d\u4f7f\u7528\u4e0d\u652f\u6301\u7684\u6bd4\u8f03\u904b\u7b97\u7b26\u3002<\/li>\n<li>\u5c0d\u8c61\u985e\u578b\u7684\u5b9a\u7fa9\u4e0d\u6b63\u78ba\uff0c\u5c0e\u81f4\u7121\u6cd5\u9032\u884c\u6709\u6548\u7684\u6bd4\u8f03\u3002<\/li>\n<\/ul>\n<h2 id=\"%e9%8c%af%e8%aa%a4%e7%9a%84%e5%bd%b1%e9%9f%bf-yMUZrNnhjV\">\u932f\u8aa4\u7684\u5f71\u97ff<\/h2>\n<p>\u9019\u500b\u932f\u8aa4\u4e0d\u50c5\u6703\u5c0e\u81f4 SQL \u67e5\u8a62\u5931\u6557\uff0c\u9084\u53ef\u80fd\u5f71\u97ff\u6574\u500b\u61c9\u7528\u7a0b\u5e8f\u7684\u904b\u884c\u3002\u7576\u61c9\u7528\u7a0b\u5e8f\u7121\u6cd5\u6b63\u78ba\u8655\u7406\u6578\u64da\u6642\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u6578\u64da\u4e0d\u4e00\u81f4\u6216\u4e1f\u5931\u3002\u56e0\u6b64\uff0c\u53ca\u6642\u4fee\u5fa9\u9019\u500b\u932f\u8aa4\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002<\/p>\n<h2 id=\"%e6%95%85%e9%9a%9c%e4%bf%ae%e5%be%a9%e6%ad%a5%e9%a9%9f-yMUZrNnhjV\">\u6545\u969c\u4fee\u5fa9\u6b65\u9a5f<\/h2>\n<p>\u8981\u4fee\u5fa9 <code>ORA-22901<\/code> \u932f\u8aa4\uff0c\u53ef\u4ee5\u9075\u5faa\u4ee5\u4e0b\u6b65\u9a5f\uff1a<\/p>\n<h3 id=\"1-%e6%aa%a2%e6%9f%a5%e5%b0%8d%e8%b1%a1%e9%a1%9e%e5%9e%8b%e7%9a%84%e5%ae%9a%e7%be%a9-yMUZrNnhjV\">1. \u6aa2\u67e5\u5c0d\u8c61\u985e\u578b\u7684\u5b9a\u7fa9<\/h3>\n<p>\u9996\u5148\uff0c\u6aa2\u67e5\u4f60\u7684\u5c0d\u8c61\u985e\u578b\u5b9a\u7fa9\uff0c\u78ba\u4fdd VARRAY \u6216 LOB \u5c6c\u6027\u6b63\u78ba\u8a2d\u7f6e\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>CREATE OR REPLACE TYPE my_object AS OBJECT (\n    id NUMBER,\n    data VARRAY(10) OF VARCHAR2(100)\n);\n<\/code><\/pre>\n<h3 id=\"2-%e9%81%bf%e5%85%8d%e7%9b%b4%e6%8e%a5%e6%af%94%e8%bc%83-varray-%e6%88%96-lob-yMUZrNnhjV\">2. \u907f\u514d\u76f4\u63a5\u6bd4\u8f03 VARRAY \u6216 LOB<\/h3>\n<p>\u5728 SQL \u67e5\u8a62\u4e2d\uff0c\u907f\u514d\u76f4\u63a5\u4f7f\u7528 <code>WHERE<\/code> \u5b50\u53e5\u4f86\u6bd4\u8f03 VARRAY \u6216 LOB \u5c6c\u6027\u3002\u53ef\u4ee5\u8003\u616e\u4f7f\u7528\u5176\u4ed6\u65b9\u6cd5\uff0c\u4f8b\u5982\u5c07\u5176\u8f49\u63db\u70ba\u5b57\u7b26\u4e32\u9032\u884c\u6bd4\u8f03\uff1a<\/p>\n<pre><code>SELECT * FROM my_table\nWHERE TO_CHAR(my_varray) = 'some_value';\n<\/code><\/pre>\n<h3 id=\"3-%e4%bd%bf%e7%94%a8-pl-sql-%e9%80%b2%e8%a1%8c%e8%99%95%e7%90%86-yMUZrNnhjV\">3. \u4f7f\u7528 PL\/SQL \u9032\u884c\u8655\u7406<\/h3>\n<p>\u5982\u679c\u9700\u8981\u5728 PL\/SQL \u4e2d\u9032\u884c\u6bd4\u8f03\uff0c\u53ef\u4ee5\u8003\u616e\u4f7f\u7528\u5faa\u74b0\u4f86\u9010\u500b\u5143\u7d20\u9032\u884c\u6bd4\u8f03\uff0c\u800c\u4e0d\u662f\u76f4\u63a5\u4f7f\u7528\u6bd4\u8f03\u904b\u7b97\u7b26\uff1a<\/p>\n<pre><code>DECLARE\n    v_array my_object;\n    v_value VARCHAR2(100) := 'some_value';\n    v_match BOOLEAN := FALSE;\nBEGIN\n    FOR i IN 1 .. v_array.data.COUNT LOOP\n        IF v_array.data(i) = v_value THEN\n            v_match := TRUE;\n            EXIT;\n        END IF;\n    END LOOP;\n\n    IF v_match THEN\n        DBMS_OUTPUT.PUT_LINE('Match found!');\n    ELSE\n        DBMS_OUTPUT.PUT_LINE('No match found.');\n    END IF;\nEND;\n<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-yMUZrNnhjV\">\u7e3d\u7d50<\/h2>\n<p>\u5728 Oracle \u6578\u64da\u5eab\u4e2d\uff0c<code>ORA-22901<\/code> \u932f\u8aa4\u901a\u5e38\u662f\u7531\u65bc\u4e0d\u7576\u6bd4\u8f03 VARRAY \u6216 LOB \u5c6c\u6027\u5f15\u8d77\u7684\u3002\u901a\u904e\u6aa2\u67e5\u5c0d\u8c61\u985e\u578b\u7684\u5b9a\u7fa9\u3001\u907f\u514d\u76f4\u63a5\u6bd4\u8f03\u4ee5\u53ca\u4f7f\u7528 PL\/SQL \u9032\u884c\u8655\u7406\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u4fee\u5fa9\u9019\u500b\u932f\u8aa4\u3002\u4e86\u89e3\u9019\u4e9b\u7d30\u7bc0\u4e0d\u50c5\u80fd\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u597d\u5730\u7ba1\u7406\u6578\u64da\u5eab\uff0c\u9084\u80fd\u63d0\u9ad8\u61c9\u7528\u7a0b\u5e8f\u7684\u7a69\u5b9a\u6027\u548c\u6027\u80fd\u3002<\/p>\n<p>\u5982\u679c\u60a8\u9700\u8981\u66f4\u591a\u6709\u95dc <a href=\"https:\/\/server.hk\">\u9999\u6e2f VPS<\/a> \u548c\u6578\u64da\u5eab\u7ba1\u7406\u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u8cc7\u6e90\u548c\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u89e3\u6c7a ORA-22901 \u932f\u8aa4\uff0c\u7121\u6cd5\u6bd4\u8f03 VARRAY \u6216 LOB \u5c6c\u6027\uff0c\u63d0\u4f9b\u6545\u969c\u4fee\u5fa9\u548c\u9060\u7a0b\u8655\u7406\u65b9\u6848\uff0c\u52a9\u60a8\u5feb\u901f\u6062\u5fa9\u7cfb\u7d71\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-87978","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/87978","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=87978"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/87978\/revisions"}],"predecessor-version":[{"id":87979,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/87978\/revisions\/87979"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=87978"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=87978"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=87978"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}